DCA/AL250/49 - Gas Producer Rotor Assembly Tie Bolts - Replacement 18 <applicability> <applicability> <p> <span> Model 250-B17, 250-B17B, 250-B17C, 250-B17D, 250-B17E, 250-B17F, 250-B17F/1, 250-B17F/ 2, 250-C18, 250-C20, 250-C20B, 250-C20F, 250-C20J, 250-C20R, 250-C20R/1, 250-C20R/2, 250-C20R/4, 250-C20S and 250-C20W series turboprop and turboshaft engines fitted with g...
DCA/AL250/3 - External Oil Sump Screen - Removal 3 <applicability> <applicability> <p> <span> All 250-C18 and 250-C18A turbine assemblies as detailed</span> </p> </applicability> </applicability>
DCA/AL250/47 - Turbine Wheel Energy Absorbing Ring - Installation. 17 <applicability> <applicability> <p> <span> Model 250-B17B, B17C, -B17D, -B17E, -C20, -C20B, - C20F, -C20J, -C20S, and -C20W turboprop and turboshaft engines that are not fitted with a turbine energy absorbing ring, P/N 23035175, or an equivalent approved turbine energy absorbing ring.</span>...
DCA/AL250/7 - Compressor Rotor, Second and Third Stage Wheel Assembly - Rework <applicability> <applicability> <p> <span> All 250-C18 and 250-C18A as detailed</span> </p> </applicability> </applicability>
DCA/AL250/51A - Third and Fourth Stage Turbine Wheels <applicability> <applicability> <p> <span> Models 250- C30, -C30G, -C30G/2, -C30M, -C30P, -C30R, -C30R/1, -C30R/3, -C30R/ 3M, -C30S, -C30U, -C40B, -C47B and -C47M turboshaft engines, fitted with third-stage turbine wheels, P/Ns 6898663 or 23065843, or a fourth-stage turbine wheel P/Ns 6892764 or 23066...
DCA/AL250/35 - Scavenge Line Air/Oil Separator Assembly - Installation. 10 <applicability> <applicability> <p> <span> Model 250-C28B, S/N CAE 860011 through CAE 860787 with turbine S/N CAT 70011 through 70804</span> </p> </applicability> </applicability>
DCA/AL250/21B - Power Turbine Outer Coupling Nut - Inspection. 5 <applicability> <applicability> <p> <span> All model 250-B17, -C18 and -C20 series with power turbine coupling nut P/N 6846278 or 6871338</span> </p> </applicability> </applicability>
DCA/AL250/20 - Compressor Bleed Valve - Modification. 5 <applicability> <applicability> <p> <span> All model 250-C20 and 250-C20B</span> </p> </applicability> </applicability>
DCA/AL250/6 - Sixth Stage Compressor Blades - Modification. 3 <applicability> <applicability> <p> <span> All 250-C18 and 250-C18A compressor assemblies as detailed</span> </p> </applicability> </applicability>
DCA/AL250/22C - Turbine Wheel - Inspection, Retirement and Operating Limitation. 6 <applicability> <applicability> <p> <span> All model 250-C20, -C20B, -C20C, -B17, -B17B, AND -B17C with following slotted third stage turbine wheels:</span> </p> <table border="0" cellspacing="0" cellpadding="0" style="border-collapse:c...
DCA/AL250/36B - Unapproved Components - Removal 10 <applicability> <applicability> <p> <span> Model 250 series fitted with any of the following components.</span> </p> <table border="0" cellspacing="0" cellpadding="0" style="border-collapse:collapse;"> <tbody><...
DCA/AL250/8 - Compressor Case Assembly Vanes Leading Edge - Rework. 3 <applicability> <applicability> <p> <span> All 250-C18 and 250-C18A as detailed</span> </p> </applicability> </applicability>
DCA/AL250/52 - Generator Idler Gearshaft <applicability> <applicability> <p> <span> All model 250-C28 and 250-C30 series engines fitted with a generator idler gearshaft P/N 6898980 or 6898591 or 77 tooth spur idler gearshaft P/N 6898652</span> </p> <p> <span>These engines are known to be inst...
DCA/AL250/45 - C28 3 ... <p> <span>These engines are installed on, but not limited to, Bell Helicopter Textron 206L-1; Eurocopter Deutschland BO 105 LS A-1; and Eurocopter Canada BO 105 LS A-3 helicopters. (FAA AD 2004-14-02)</span> </p> </applicability> </applicability>
DCA/AL250/31 - Turbine Assembly - Modification. 9 <applicability> <applicability> <p> <span> Model 250-C30 series with turbine S/Ns detailed in Allison CEB-A-72-3128 Rev. 1 and CEB-A-72-3137 Rev. 2</span> </p> </applicability> </applicability>
DCA/AL250/30 - Turbine Assembly, Splined Adaptor Locknut - Inspection. 9 <applicability> <applicability> <p> <span> Models 250-C28B, -C28C and -C30 series engines with following turbine S/Ns CAT 70001 through 70802 and 70804; CAT 28001 through 28046; CAT 90001 through 95436 and 95438</span> </p> </applicability> </applicability>
DCA/AL250/15 - Compressor PC Filter Insert - Rework and Modification. 4 <applicability> <applicability> <p> <span> As detailed in Parts 1, 2 and 3 of CEB-112</span> </p> </applicability> </applicability>
